Cool Under Pressure: Emerson’s 3144S Temp Transmitter

Emerson has expanded its Rosemount portfolio with the 3144S, a next-generation temperature transmitter designed for precision, reliability, and ease of use. Offering industry-leading accuracy of 0.05°C and a 20-year stability guarantee, the 3144S helps process industries maintain consistent quality while reducing downtime. With Emerson’s ReadyConnect technology, setup and replacement are simplified through automatic sensor configuration. Advanced diagnostics, including loop integrity checks and RTD measurement protection, further ensure reliable operation in demanding industrial environments.

The Rosemount 3144S temperature transmitter. Image used courtesy of Emerson

Transmitting Temperature Signals

To measure temperature, you need a temperature sensor and a transmitter to condition and amplify the signal. Depending on the sensor, the transmitter converts microvolts or resistance into a 4-20 mA signal or a 0-10 VDC signal. The accuracy of the transmitter will directly affect the accuracy of your temperature reading. Most transmitters are small devices that live inside the electrical panel, and do not have many options. Emerson recently released the Rosemount 3144S, a highly accurate and reliable temperature transmitter.

The Rosemount 3144S Transmitter

Measuring temperature often occurs with process automation, and the measured value can greatly affect the process. Product production will suffer if the measured temperature is inaccurate or erratically fluctuates. Emerson has addressed these issues with the Rosemount 3144S with a measuring accuracy of 0.05°C. A transmitter of this accuracy needs to be in service for a long time, so Emerson is offering an optional 20-year limited warranty and a 20-year stability specification. A guarantee such as this offers process engineers peace of mind that their temperature monitoring system will be stable for at least 20 years.

The 3144S connected to a temperature sensor. Image used courtesy of Emerson

ReadyConnect By Emerson

Commissioning of transmitters or signal conditioners requires connecting to the device, inputting any sensor information required, updating coefficients or gains, and then saving all this information in the event the device needs to be replaced. With Emerson’s ReadyConnect technology, simply plug in a compatible sensor, and the 3144S will automatically read the sensor's RFID tag and import all the required configurations needed to accurately transmit the sensor's values to the control or SCADA system. If the sensor is replaced, the 3144S will read the new sensor's information at the touch of a button. The status of the transmitter and the measured value can be read from the large backlit graphical display located on the front of the transmitter.

Process automation example with temperature sensors and pumps. Image used courtesy of Unsplash

Diagnostics Within The System

Detecting problems before they occur is what saves time when something goes wrong. Emerson knows this, so they implemented time-saving diagnostics features into the new 3144S transmitter.

Loop Integrity diagnostic is a function that constantly monitors the entire electrical loop and will detect issues before they occur. This feature will also report a sensor health status to the control room.

RTD Measurement protection will seamlessly switch the transmitter's configuration from a four-wire RTD to a three-wire RTD if one of the wires becomes corroded or broken. This feature can save hours of troubleshooting and is especially useful with sensors that are in hard-to-reach locations or high-temperature applications. The transmitter will report the damaged wire but continue to report the temperature.

Temperature Reading

Accurate temperature display is very important to many processes; beer production, for example, needs to maintain a constant temperature. If the temperature fluctuates too much, an entire batch could be ruined, costing the company hundreds of thousands of dollars. If your application is similar, try looking at the Rosemount 3144S temperature transmitter.